_convertLatLngs overwrites arrays (pass by reference)

[KeithTurkowski]

I have an object that maintains and manipulates its own set of verts, I am currently doing: "L.Polygon(region.verts.slice(0), style)" using .slice(0) to duplicate the array, since if I pass in region.verts directly, the array gets modified by the _convertLatLngs function.

_convertLatLngs: function (latlngs) {
    var i, len;
    for (i = 0, len = latlngs.length; i < len; i++) {
        if (latlngs[i] instanceof Array && typeof latlngs[i][0] !== 'number') {
            return;
        }
        latlngs[i] = L.latLng(latlngs[i]);
    }
    return latlngs;
}

It seems like it would be nice if we could have something like "var new_latlngs", "new_latlngs[i] = L.latLng(latlngs[i]);" so people wouldn't have to worry about this.

If people are considering the overwrite to be a feature, if so maybe we could have an option to toggle this behavior off?

Thanks for your attention.

[mourner]

Yeah, needs to be fixed for 0.5 I think.